William hoghiiausen



(No Model.)

W. H-OCHHAUSEN.

MAGNETO ELECTRIC MACHINE.

PP Patented Jan. 24,1882.

No. 252,664. Fig.1.

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1 UNITED STATES PATENT @rrrcao WILLIAM HOOHHAUSEN, OF NEW YORK, N. Y.

MAGNETO-ELECTRICI MACHINE.

SPECIFICATION forming part of Letters Patent No. 252,664, dated January 24, 1882.

Application tiled September 5, 1881. (No model.)

To all whom it may concern:

Be it known that I, WM. HOCI-II-IAUSEN, a citizen of the United States, residing at New York, inthe county of New York and State of New York, have invented certain new and useful Improvements in the Construction of Magneto and Dynamo Electric Machines, of Which the following is a specification.

The object of my invention is to improve the construction of that class of magneto-electric or dynamo-electric machines in which currents are produced by the rapid passage of the poles of a circular range or series of electromagnets by and in close proximity to the poles of another range or series, either stationary or moving in an opposite direction.

My invention consists in certain features of construction, whose peculiarities will be here inafter described, and which will be specified in the claims hereto annexed.

In the accompanying drawings, Figure l is a longitudinal sectional view of a machine embodying my invention, taken in the line X X of Fig. 2. Fig. 2 is a side view of the machine with a portion broken awayin order to better show the construction. Fig. 3 is a detail perspective view of a peculiar pole-piece or pro jection for the electro-magnets that are supported and carried on the shaft of the machine.

My invention is herein shown as embodied in a machine adapted to produce alternating currents.

A represents the base of the machine; B, its revolving shaft, journaled in suitable bearings, C, that are supported upon the base- .plate, and also provided with an ordinary driving-pulley, D.

Securely fastened to the shaft by any suitable means are two spider-frames, E,each com- .posed of a hub, (2, four arms, E, and a uniting rim or ring, F, all of sutficient area of crosssection to give great strength and stiffness to the structure. Each spider-frame, with its rim and hub, is of iron of any desired quality, and the whole is preferably cast in one piece.

Uniting the rims of the two frames are a series of cross bars or rods, G, of iron, secured ,to the frame in any suitable manner, and each adapted to form the core of two coils or heliices to be placed at either end of the bar in proximity to the rims and wound at right angles to the longitudinal axis of the bar, but with a space between them at the center of the bar, for the attachment of a pole-piece. These coils or helices are shown in end view at Fig. 2, the manner in which theyare wound to produce a consequent pole at the center of the cross-bar being indicated in Fig. 1.

In the machine here shown the center of every other bar should be of the same polarity, while the contiguous bars should be of opposite polarity. This arrangement is indicated by the letters N S, Fig. 2, while the manner of connecting the coils or helices of the cross-bars to give the desired polarity, the outer end of a helix being connected to the outer end of the helix upon one side and its inner end to the inner end of the'helix upon the other side, is also indicated. The whole range of magnets upon the revolving frame is connected in this manner in series, and the terminals 1 and 2 of the series are connected respectively to the me tallic disks or rings 5 (i, of any suitable form, secured to the revolving shaft, and insulated from the shaft and from one another in any desired manner.

Brushes 7 8 bear upon the disks, and are connected, the one to the one pole and the other to the other pole of an electric generator, so that the circuit of said generator is completed through the coils or helices upon the cross-bars, and the centers of the bars are magnetized with consecutively opposite polarity.

K represents a pole piece or projection designed for attachment to the middle portion of the cross rods or bars and adjusted to pass in close proximity to the poles of a stationary circular range or series of magnets. It consists, as shown, of a sleeve adapted to embrace the crossbar and to be secured thereto by screws or bolts or by keying, and provided upon one side with a number of projecting teeth or pole-pieces formed thereupon in any suitable manner. The purpose of thus form ing the polar projection is to facilitate the changes ofmagneticintensity in said pole-pieces produced by their rapid approaches and recessions to and from the magnets.

The two side frames or wheels and the crossbars, constructed in the manner above described, are in the form ofa lantern-pinion, and as thus constructed the frameisofgreatrigidity.

Moreover, each cross Q bar, when magnetized, forms at each end the leg of a horseshoe'magnet, the other leg being the ends of adjacent cross-bars upon the same end of the armature, the neutral portion of the magnet being the rim or circumference of the spider-frame.

The stationary range or series of magneis is constructed as follows:

L L represent two annular plates set upon edge, and resting in an opening in the base plates of the machine. They are braced and secured in place by angle-pieces M, bolted to the base-plate and to said annular plates, as shown.

P P represent a number of parallel annular plates of iron, each provided with radial projections It, extending inwardly toward the axis of the machine, said plates being secured together between the plates L, so that their projections It will coincide. The plates P are insulated magnetically from one another and from the side plates by blocks or pieces of any suitable material, and are secured together and to the side plates by bolts of non-magnetic material, as shown. The magnetic insulation between the'plates is preferably in the form of washers surrounding the bolts. It may, however, be placed also at other points, but should be so arranged as to leave free-air spaces between the plates for the circulation of air. It desired, however, the magnetic insulation maybe in the form of annular plates filling the whole space between the annular plates of magnetic material. In the latter case there would be no free-air space between the plates.

The projections It are designed to receive the coils of helices from which the useful currents generated by the machine are taken, said coils or helices being preferably wound in the usual way upon aspool, and placed in position so as to embrace the coincident projections, as indicated in Fig. 2. The terminals of these helices are to be connected either for quantity effects or in series for tension effects in any desired order or number. In making such con- .nection it should be noticed that the currents produced simultaneously in contiguous coils are of opposite direction, the poles of the inducing-magnets being alternately of opposite polarity.

The above construction of the cores of the stationary magnets facilitates the magnetic charge and discharge, and, when the plates are separated from one another by the separate blocks or washers ofmagnetic insulation placed between them at isolated points, also allows free circulation of cooling air-currents. The construction and manner of mounting and securing the parts in place are also simple and convenient.

The machine as above constructed operates in the well-known manner to produce alternating currents in the stationary helices.

By modifications in the manner of connecting the coils and by the employment of suitable commutators, as is well understood in the art, currents in the same direction may be obtained, and,ifdesired, the principle of mutual accumulation may be employed. So, too, if desired, the currents may be taken from the moving magnets, the stationary magnets being polarized by any suitable means.

I do not deem it necessary to describe or show any of these variations, as they are wellscribed, of two parallel disks or spider-frames and longitudinal cross bars or rods connecting said frames and wound with sets of magnetizing-helices, connected to one another and to a source of electric energy in the manner described, so as to produce at the middle portion of the rods consequent poles, alternately north and south in the successive rods or bars.

2. The con'ibination, substantially as described, of the spider frames or wheels E, the longitudinal cross bars or rods uniting said frames, and two coils or hcliceswonnd at right angles to the axis of said bars and separated from one another at the center of the bar, the coils or helices being wound as described, so as to produce a consequent pole at the portion of the bar between them.

8. The combination of the longitudinal rods or bars adapted to receive coils or helices wound at right angles to their longitudinal axis, and pole piecesor projections consisting of a sleeve or casing adapted'to embrace the bars and to be secured thereto in any suitable manner, and provided with a number of projecting teeth or polar extensions projecting at right angles from the bars.

4. The combination of the annular embrac-v ing rings or plates seated in an openingin the base-plate, and two or more plates secured between said embracing rings or plates, insulated from one another and from the embracingrings, and provided each with a number ot'radial projections extcmlinginwardly toward the axis of the machine.

5. The combination of the annular holdingplates L, annular plates I, secured together between the plates L and magnetically insulated from one another, said plates being provided with inwardly-extending radial projections, as shown, and coils or helices embracing said radial projections, as and for the purpose described.

6. The combination, substantially as described, of a number of annular plates secured together, non-magnetic insulating material interposed between the plates, so as to separate them magnetically and at the same time allow 1?, and angular plates M scribed.

the circulation ofair-cnrrents, in wardly-extend in g radial projections upon said plates, and coils or helices embracing said projections, in the 5 manner described.

7. The combination of the plates L, seated in the base-plate ot'the machine, annular plates WILLIAM H OCHH AUSEN.

Witnesses:

H. O. TOWNSEND, N. S. KEITH.

,' substantially as de- 

